Description:Usain Bolt, current double Olympic and worlds champion in 100m and 200m, pulled on the jersey of his favourite club Manchester United on Wednesday (September 18) and took to the soccer pitch to 'train' Sergio Aguero of arch-rivals Manchester City. For a sponsor's video, Bolt attempted to tire the Argentina national player before Sunday's (September 22) derby between City and United with some poor passing, forcing Aguero to run all over the pitch.(0:50)